Islamabad High Court (IHC) had further hearing of the case relating to blasphemous contents on social media.
Director FIA told the court that Face book is being requested to block such pages involving nine sites.
He said the request is being made in accordance with the international law.
The Director said investigations are still underway.
Justice Shaukat Siddiqui, who is hearing the case, said those guilty of blasphemy would not escape.
The case has now been adjourned till 17th of this month.